December 20,
2013 - SICK
announced the launch of the Flexi Loop safety controller node. The Flexi Loop
can cascade up to 32 safety switches and OSSD safety sensors onto one loop,
independent of the manufacturer.

The Flexi
Loop, which is part of SICK's safety controller family, uses a single cable
with an M12 plug to connect e-stops, sensors, switches, lamps, pushbuttons and
interlocks. Flexi Soft safety controllers can support up to eight Flexi Loops,
enabling a total of 256 switches in a small footprint. As a result, the Flexi
Loop requires minimal wiring effort, which saves costs and ensures fast
configuration.

This modular
safety concept integrates all common fieldbuses, including EtherNet/IP,
CANopen, DeviceNet and PROFINET IO. Diagnostic data about each of the sensors
connected to the loop can be shared via these gateways, which helps
troubleshoot problems and reduce machine downtime. Regardless of the number of
sensors or switches, the Flexi Loop is able to maintain a performance level of
PLe since it monitors each sensor individually. The Flexi Loop is ideal for
safety applications in the packaging, commercial goods, and electronics and
solar industries that require several doors, e-stops and electro-sensitive
protective devices.